Royston (Iceni) Weather Station

Daily Weather Observations - June 2001

Date Max Min Grass Earth Sunshine Rainfall Wind Mean Max Cloud Mean Mean Mean Fog Fog Snow Snow Hail Thunder Date
  Temp Temp Min (30cm) (Hrs) (MM) Direc- Wind Gust Cover MSL Rel. Temp (vis.< (vis.< or Lying 00/00h 00/00h  
  (°C) (°C) Temp Temp 00/00h 09/09h tion Speed Speed (Oktas) Pressure Humd (°C) 1000m) 200m Rain/ (>50%      
  09/09h 09/09h (°C) (°C)     09h (mph) (mph) 09h (mb) (%) 00/00h 09h 09h Snow cover    
      09/09h 09h       00/00h 00/00h   00/00h 00/00h       00/00h 09h)      
                                         
1 18.1 9.2 7.5 17.0 1.07 0.9 NW 6.0 23 7 1019.8 69.6 14.0 0 0 0 0 0 0 1
2 14.7 11.1 10.6 16.7 0.57 TR NW 5.6 28 8 1014.5 72.4 11.8 0 0 0 0 0 0 2
3 17.2 4.0 2.2 15.8 10.18 0.0 NW 4.6 23 6 1023.7 60.0 10.5 0 0 0 0 0 0 3
4 19.6 8.9 6.6 15.9 4.62 0.0 W 4.3 21 7 1023.7 61.9 14.2 0 0 0 0 0 0 4
5 22.0 8.1 5.1 16.1 7.54 0.0 SW 2.4 21 1 1016.6 59.1 15.4 0 0 0 0 0 0 5
6 19.0 12.0 10.1 17.0 0.95 0.4 SW 7.2 30 8 1009.8 70.6 15.0 0 0 0 0 0 0 6
7 16.9 7.8 6.0 16.8 9.96 TR W 6.0 32 6 1010.0 62.2 11.6 0 0 0 0 0 0 7
8 15.9 5.9 3.5 16.0 8.57 TR W 3.9 21 7 1013.6 57.6 10.5 0 0 0 0 0 0 8
9 16.1 5.3 1.6 15.4 7.27 0.7 W 2.8 25 7 1014.5 63.3 11.0 0 0 0 0 0 0 9
10 14.5 8.1 7.5 15.5 3.14 0.6 NW 3.4 25 8 1016.7 83.9 9.6 0 0 0 0 0 0 10
11 16.5 5.6 2.2 14.6 6.38 TR W 3.6 21 1 1022.0 69.0 12.1 0 0 0 0 0 0 11
12 19.0 10.5 9.8 15.0 1.76 0.0 W 1.3 12 7 1019.6 60.0 14.1 0 0 0 0 0 0 12
13 20.6 11.2 11.1 15.8 5.80 0.0 SE 2.2 18 8 1015.3 59.3 15.0 0 0 0 0 0 0 13
14 21.8 10.0 9.0 16.1 9.13 2.0 S 3.9 23 1 1012.7 68.7 15.7 0 0 0 0 0 0 14
15 19.9 12.4 11.2 16.5 3.51 3.8 S 3.7 21 7 1005.9 82.1 15.4 0 0 0 0 0 1 15
16 17.3 12.4 10.7 16.5 0.78 12.4 S 2.0 21 8 1002.8 90.3 14.2 0 0 0 0 0 1 16
17 13.7 10.9 11.0 16.4 0.00 TR NW 3.5 25 8 1015.2 90.7 11.2 0 0 0 0 0 0 17
18 18.6 5.4 3.1 15.0 8.09 0.0 N 1.8 16 1 1026.8 67.5 12.3 0 0 0 0 0 0 18
19 22.5 11.1 10.1 15.7 11.31 0.0 SW 5.1 21 5 1025.4 62.8 17.0 0 0 0 0 0 0 19
20 22.2 11.7 10.5 16.5 8.09 0.0 W 5.8 23 4 1018.2 63.1 17.1 0 0 0 0 0 0 20
21 20.5 9.3 6.5 16.9 14.65 0.0 NW 3.2 23 5 1017.1 61.2 14.3 0 0 0 0 0 0 21
22 21.5 7.5 4.9 16.9 13.42 0.0 NE 1.8 16 0 1018.1 70.1 14.1 0 0 0 0 0 0 22
23 21.0 9.4 7.0 17.2 9.69 0.0 SE 1.8 16 7 1018.9 73.8 15.0 0 0 0 0 0 0 23
24 26.0 10.8 8.6 17.6 12.57 0.0 NE 1.9 16 0 1020.5 66.9 18.5 0 0 0 0 0 0 24
25 27.0 14.3 13.0 18.5 15.73 0.0 SE 3.5 21 1 1022.7 56.7 20.3 0 0 0 0 0 0 25
26 27.6 15.4 13.4 19.0 13.27 TR SE 2.7 25 1 1013.9 62.0 21.6 0 0 0 0 0 1 26
27 24.5 16.0 16.0 19.7 8.37 TR SW 6.7 28 8 1009.3 69.1 19.6 0 0 0 0 0 1 27
28 22.8 13.2 12.0 19.3 7.86 TR SW 6.9 30 8 1014.9 67.9 18.2 0 0 0 0 0 0 28
29 23.0 14.6 13.3 19.0 3.36 0.2 SW 7.4 30 6 1017.9 77.0 19.0 0 0 0 0 0 0 29
30 22.7 15.0 12.5 19.1 8.66 TR SW 6.8 32 3 1019.1 68.2 18.5 0 0 0 0 0 0 30
                                         
Mean/Total 20.1 10.2 8.6 16.8 216.30 21.0 X 4.1 X 5.1 1016.6 68.2 14.9 0 0 0 0 0 4 Mean/Total
  (+0.4) (+0.0)     (111%) (42%)                            

Differences from average shown in red. Reference periods used: Temperature 25 Years 1973/1997; rainfall 30 Years 1971/2000; sunshine 30 Years 1961/1990.

Additional Data: Rainfall duration 17.2 hours.

Click on the links below to view this month's graphs & charts..........

1. Daily Maximum, Minimum & Grass Minimum Temperatures

2. Daily Maximum & Minimum Temperatures (with 25 Year Comparative Means)

3. Daily Earth (30 cms depth) Temperature @ 0900 GMT 4. Daily Rainfall 5. Daily Sunshine

6. Daily Maximum Gust & Mean Wind Speed 7. Daily Wind Direction @ 0900 GMT

8. Daily Mean MSL Air Pressure 9. Daily Mean Relative Humidity

10. Thermograph 11.Barograph 12. Hygrograph 13. Anemograph 14. Wind Direction

15. Sunshine Duration 16. Rainfall Intensity & Duration

.......and for a text report of the June 2001 weather in Royston click on the link below

June 2001 Weather Review

June (since 1972) at Royston (Iceni) Weather Station:

Mean daily maximum temperature (25 years 1973/1997) 19.7°C

Mean daily minimum temperature (25 years 1973/1997) 10.2°C

Highest temperature 33.7°C (26th June 1976); lowest temperature 2.2°C (3rd June 1975)

Lowest grass minimum temperature -1.0°C (2nd June 1991)

Warmest June 1976 (Mean temperature 18.3°C); coldest June 1977 (Mean temperature 12.5°C)

Average June rainfall (30 years 1971/2000) 50.2 mm

Wettest June 1985 (Rainfall 135.4 mm); driest June 1996 (Rainfall 8.0 mm)

Wettest Day 19th June 1973 (Rainfall 36.8 mm);

Highest number of "rain days" (0.2 mm or more) 23 (1997); lowest number of "rain days" 3 (1976, 1996)

Highest number of days with thunder 10 (1982)

Highest number of air frosts 0

Highest number of ground frosts 2 (1989)

Highest number of days with snow falling 1 (1975)

Highest number of days with snow lying (ground with more than 50% snow cover @ 0900 GMT) 0

A country scene typical of the Royston area; wide open spaces utilised for arable farming, under a big sky. This view at Lowerfield, some 3 km SE of Royston, is looking northwards from the B1039 road. The low ridge on the horizon lies beyond the county boundary in Cambridgeshire. As can be seen, cumulus clouds are rapidly developing at the time the photograph was taken (0827 GMT on 7th June 2001) but not enough to prevent a sunshine total of 10.0 hours for the day. The temperature is 13.0°C (later to reach a maximum of 16.9°C), and the mean wind speed is 6 knots, gusting to 14 knots, from a WSW direction. This is the view above the tree and roof tops of the northern part of Royston at 1008 GMT on 18th June 2001, as seen from Coombes Hole. Cumulus clouds are building underneath a high veil of cirrus and the surface wind is north-westerly, of mean speed 3 knots, gusting to 12 knots. The temperature is 15.3°C, later reaching a maximum of 18.6°C, which is 1.7°C below the 25 year average for this day. Bright sunshine still persists, having commenced at 0400 GMT, but by the time the photograph was taken, 6.2 hours of the day's toal of 8.1 hours had already been recorded. The afternoon was mainly cloudy with just a few brief sunny intervals. The white cliffs of Royston! Spring leaf growth has partially obscured the vertical walls of chalk in the cutting carved into Hyde Hill in 1981 for the route of the A505 Royston by-pass. Although it is only 1050 GMT (on 26th June 2001) the temperature has nonetheless already risen to 24.6°C, and proceeded to reach a maximum of 27.6°C at 1305 GMT. This was the highest temperature of the year so far. A handsome sunshine total of 13.3 hours was recorded by the end of the day, but this value does not stand comparison with the 15.7 hours accumulated the previous day. The wind direction is SE, and is of mean speed 6 knots, gusting to 16 knots.

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(This page last updated 11th July 2001 1926 GMT)